• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The aim of my investigation was to explore the viscosity of golden syrup using stokes law to calculate the viscosity of the liquid.

Extracts from this document...


Stokes's law is the basis of the falling-sphere viscometer, in which the fluid is stationary in a vertical glass tube. A sphere of known size and density is allowed to descend through the liquid. If correctly selected, it reaches terminal velocity, which can be measured by the time it takes to pass two marks on the tube.

The aim of my investigation was to explore the viscosity of golden syrup using stokes law to calculate the viscosity of the liquid.

Apart from superfluids, liquids and gasses have the property of viscosity. Viscosity is measured in Pascal-seconds; this describes its resistance to deformation and the ease that which it flows. Viscosity is internal friction this is due

...read more.


These are the results I gathered from my dropping.

Ball Radius






















‘small’ 4.69mm












‘Medium’ – 21.686s

‘Small’ – 29.673s

There is an increase in speed

...read more.



The graphs show the ball bearing size the drop attempt and the time taken. The black line shows the average of the drops.

The medium sized ball has a small gradient on the graph, this could be because of air bubbles in the golden syrup during the test, this would create a small amount of extra time to get to the bottom as the air bubbles will create resistance.

The ball bearing weight can be determined with image08.png=mg



p=Density in kg/m

The density of chrome steel is 0.283 lbs/cubic inch


This is in cubic inches but I need it in kg/mimage09.png

The density in kg/mimage09.png is 7833.4.13kg/mimage09.png

V= Volume of sphere image02.png

R= Radius of sphere (0.00596m)

V = 0.0008868

M = 0.006947kg

Fg= 0.0682 – ‘Medium’ Ball


...read more.

This student written piece of work is one of many that can be found in our AS and A Level Fields & Forces section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Fields & Forces essays

  1. Peer reviewed

    Investigating the forces acting on a trolley on a ramp

    5 star(s)

    Because the light gate was calibrated to calculate the velocity using a distance of 100mm (the apparent length of the card), if the card was not actually 100mm, this would induce a systematic error in the calculated velocities. In order to account for this, the time measured was used, which was 'raw' data, i.e.

  2. Peer reviewed

    paper cones investigation

    5 star(s)

    1.81 200 3.27 0.006 1.85 167 3.43 0.007 1.67 143 2.79 0.008 1.65 125 2.72 0.009 1.49 111 2.21 0.01 1.28 100 1.64 0.011 1.42 90.9 2.01 0.012 1.26 83.3 1.58 0.013 1.36 76.9 1.84 0.014 1.17 71.4 1.37 0.015 1.16 66.7 1.35 0.016 1.08 62.5 1.16 The graph was

  1. Viscosity Experiment. The aim of my investigation will be to analyse the relationship ...

    This is to be achieved by the spheres weight acting downwards, and in addition to the drag force produced, there is either an up thrust or buoyancy force produced. Up thrust/Buoyancy always acts when an object is immersed in a fluid, the object displaces fluid around it, and hence it arises.

  2. Investigation to determine the viscosity of glycerol.

    The red line is the upper layer of water in the jug which flows in the glass, when this layer has flown into the glass the maroon layer starts flowing and the finally the black layer. This is because the black layer is closest to the solid (which in this

  1. Practice A2 Investigation: Measuring the torsion of wire

    time can be considered as negligible as I repeated the experiment numerous times over a long period of time, (i.e. timing the period of 10 oscillations and dividing through by 10, thus lessening the percentage uncertainty of reaction time), also the measurement of I was very accurate as I used

  2. Modeling a basketball shoot in the lab

    same time fix a ruler next to it, then Measure the original length of the spring. Method: place 50g of mass on the spring increasingly. Record the corresponding length of the spring and calculate the compression of the spring every 50g.

  1. Force of friction

    The triangle represented the block at rest and the rectangle represented the block in motion. The height of the triangle was the limiting friction and the height of the rectangle was the kinetic friction . According to the graph, when the applied force is smaller then the applied force is

  2. Elastictvy of Copper investigation

    - Also to make sure the experiment is done all at one time to make the results constant. - Also to use the same equipment if I am to repeat the experiment. - Ensure that the variables are appropriately changed Equipment list: > 2 pieces of copper wire > Weights

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work